The correct answer is C. Greatful. The correct spelling is grateful.
Glamorous is an adjective that means "having an attractive and exciting quality." Granulate is a verb that means "to form into small grains or particles." Gradient is a noun that means "a gradual change in the value of something."
The word "greatful" is not a real word. It is a common misspelling of the word "grateful." The word "grateful" means "feeling or showing an appreciation of kindness."
